rs4927611

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001206744.2(TPO):c.769G>A(p.Ala257Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000954 in 1,613,834 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A257S) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00064 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

TPO
NM_001206744.2 missense

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.754

Variant links:

Genes affected

TPO (HGNC:12015): (thyroid peroxidase) This gene encodes a membrane-bound glycoprotein. The encoded protein acts as an enzyme and plays a central role in thyroid gland function. The protein functions in the iodination of tyrosine residues in thyroglobulin and phenoxy-ester formation between pairs of iodinated tyrosines to generate the thyroid hormones, thyroxine and triiodothyronine. Mutations in this gene are associated with several disorders of thyroid hormonogenesis, including congenital hypothyroidism, congenital goiter, and thyroid hormone organification defect IIA. Multiple transcript variants encoding distinct isoforms have been identified for this gene, but the full-length nature of some variants has not been determined. [provided by RefSeq, May 2011]

TPO links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.017363071).

BP6

Variant 2-1456232-G-A is Benign according to our data. Variant chr2-1456232-G-A is described in ClinVar as [Benign]. Clinvar id is 2861716.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TPO	NM_001206744.2 linkuse as main transcript	c.769G>A	p.Ala257Thr	missense_variant	7/17	ENST00000329066.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TPO	ENST00000329066.9 linkuse as main transcript	c.769G>A	p.Ala257Thr	missense_variant	7/17	1	NM_001206744.2	P1	P07202-1
	ENST00000650512.1 linkuse as main transcript	n.548-37771C>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.000638

AC:

AN:

151960

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00227

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000135

AC:

AN:

251118

Hom.:

AF XY:

0.0000663

AC XY:

AN XY:

135740

show subpopulations

Gnomad AFR exome

AF:

0.00210

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000390

AC:

AN:

1461756

Hom.:

Cov.:

AF XY:

0.0000330

AC XY:

AN XY:

727160

show subpopulations

Gnomad4 AFR exome

AF:

0.00149

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.000638

AC:

AN:

152078

Hom.:

Cov.:

AF XY:

0.000592

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.00227

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.00000362

Hom.:

19656

ExAC

AF:

0.000173

AC:

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 31, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.56

Cadd

Benign

8.1

Dann

Benign

0.91

DEOGEN2

Benign

0.27

T;T;.;.;.;.

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.067

LIST_S2

Benign

0.66

T;.;T;T;T;T

M_CAP

Benign

0.077

MetaRNN

Benign

0.017

T;T;T;T;T;T

MetaSVM

Benign

-0.91

MutationAssessor

Benign

0.84

L;L;L;L;L;.

MutationTaster

Benign

1.0

P;P;P;P;P;P;P

PrimateAI

Benign

0.33

PROVEAN

Benign

-1.1

N;N;N;N;N;N

REVEL

Benign

0.052

Sift

Benign

0.30

T;T;T;T;T;T

Sift4G

Benign

0.57

T;T;T;T;T;T

Polyphen

0.011

B;B;B;B;B;.

Vest4

0.077

MVP

0.63

MPC

0.18

ClinPred

0.0063

GERP RS

0.49

Varity_R

0.062

gMVP

0.36

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over